Minor edits

app/assets/stylesheets/new_sidebar.scss

@@ -36,8 +36,7 @@ $new-sidebar-width: 220px;
 .settings-avatar {
   background-color: $white-light;
 
-  .fa-wrench,
-  .fa-user {
+  i {
     font-size: 20px;
     width: 100%;
     color: $gl-text-color-secondary;

app/views/layouts/nav/_new_admin_sidebar.html.haml

 .nav-sidebar
-  = link_to admin_root_path, title: 'Overview', class: 'context-header' do
+  = link_to admin_root_path, title: 'Admin Overview', class: 'context-header' do
     .avatar-container.s40.settings-avatar
       = icon('wrench')
     .project-title Admin Area

app/views/layouts/nav/_new_group_sidebar.html.haml

 .nav-sidebar
-  = link_to group_path(@group), title: 'Home', class: 'context-header' do
+  = link_to group_path(@group), title: 'Group', class: 'context-header' do
     .avatar-container.s40.group-avatar
       = image_tag group_icon(@group), class: "avatar s40 avatar-tile"
     .group-title